Heat exchanger for cooling hot reaction gas

Abstract

A heat exchanger for cooling hot reaction gas with a coolant. The exchanger rests on a gas-supply chamber (4) and has gas pipes (8). The pipes extend individually out of a wall (1) that surrounds the pipes and are accommodated in a pipe-slab floor (6) between the wall and the chamber. The pipes extend through bores (20) in the floor leaving an annular gap (21). At least one coolant-supply line (9) terminates on the side of the floor facing away from where the gas enters. Chambers (12) demarcated by a flat bottom (15), by a partition (13) that parallels the pipes, and by part of a wall-mounted ring (14) are accommodated in the half of the floor facing the side where the gas enters. The chambers communicate with a common coolant supply. One or more gas pipes (8) extends through every such chamber. The ring is positioned at the edge of the floor and surrounds all the chambers. The floor comprises a thinner section (18) that is cooled by the coolant and constituted by the bottoms of all the chambers and a thicker and rigid section (19) that the thinner section rests on by way of the partitions.

We claim: 
     
       1. A heat exchanger for cooling hot reaction gas with a coolant, comprising: an exchanger resting on a gas-supply chamber and having gas pipes extending individually out of a wall surrounding said pipes and being accommodated in a pipe-slab floor between said wall and said chamber; said pipes extending through bores in the floor leaving an annular gap, at least one coolant-supply line terminating on a side of the floor facing away from where the gas enters; chambers demarcated by a flat bottom, by a partition that parallels the pipes, and by part of a wall-mounted ring, said chambers being accommodated in a half of the floor facing a side where the gas enters and communicating with a common coolant supply, at least one gas pipe extending through each said chambers, said ring being positioned at an edge of the floor and surrounding all said chambers, said floor comprising a thinner section cooled by said coolant and formed by bottoms of all said chambers and a thicker and rigid section that said thinner section rests on by said partition. 
     
     
       2. A heat exchanger as defined in claim 1, wherein said chambers are radial. 
     
     
       3. A heat exchanger as defined in claim 2, including a central supply chamber in the floor between said radial chambers, said coolant supply line opening into said central supply chamber. 
     
     
       4. A heat exchanger as defined in claim 3, wherein each said radial chamber communicates with said central-supply chamber through a slot in said partition. 
     
     
       5. A heat exchanger as defined in claim 4, wherein said slot is oriented in said partition tangential to said radial chamber. 
     
     
       6. A heat exchanger as defined in claim 4, wherein said slot is oriented in said partition radial to said radial chamber. 
     
     
       7. A heat exchanger as defined in claim 1, including an intake for coolant in and at an outer edge of said chambers. 
     
     
       8. A heat exchanger as defined in claim 1, including a port in every section of said ring associated with one of said chambers. 
     
     
       9. A heat exchanger as defined in claim 8, including a line communicating with said port and extending out through said wall and through a sludge-removal valve. 
     
     
       10. A heat exchanger as defined in claim 1, wherein said floor is horizontal and has a diameter shorter than that of said wall; a cone open at the top, said floor being attached by said cone to and above a flange comprising a lower edge of said wall. 
     
     
       11. A heat exchanger as defined in claim 1, including a connection laterally attached to said wall, said floor being vertical and accommodated in said connection laterally attached to said wall. 
     
     
       12. A heat exchanger as defined in claim 11, wherein a line to a sludge-removal valve communicates only with said chambers in said vertical floor.